import * as plugins from './mod.plugins.js';
import { Project } from '../classes.project.js';
import { FormatContext } from './classes.formatcontext.js';
import { FormatPlanner } from './classes.formatplanner.js';
import { BaseFormatter } from './classes.baseformatter.js';
import { logger, setVerboseMode } from '../gitzone.logging.js';

import { CleanupFormatter } from './formatters/cleanup.formatter.js';
import { SmartconfigFormatter } from './formatters/smartconfig.formatter.js';
import { LicenseFormatter } from './formatters/license.formatter.js';
import { PackageJsonFormatter } from './formatters/packagejson.formatter.js';
import { TemplatesFormatter } from './formatters/templates.formatter.js';
import { GitignoreFormatter } from './formatters/gitignore.formatter.js';
import { TsconfigFormatter } from './formatters/tsconfig.formatter.js';
import { PrettierFormatter } from './formatters/prettier.formatter.js';
import { ReadmeFormatter } from './formatters/readme.formatter.js';
import { CopyFormatter } from './formatters/copy.formatter.js';

// Shared formatter class map used by both run() and runFormatter()
const formatterMap: Record<string, new (ctx: FormatContext, proj: Project) => BaseFormatter> = {
  cleanup: CleanupFormatter,
  smartconfig: SmartconfigFormatter,
  license: LicenseFormatter,
  packagejson: PackageJsonFormatter,
  templates: TemplatesFormatter,
  gitignore: GitignoreFormatter,
  tsconfig: TsconfigFormatter,
  prettier: PrettierFormatter,
  readme: ReadmeFormatter,
  copy: CopyFormatter,
};

// Formatters that don't require projectType to be set
const formattersNotRequiringProjectType = ['smartconfig', 'prettier', 'cleanup', 'packagejson'];

export let run = async (
  options: {
    write?: boolean;
    dryRun?: boolean; // Deprecated, kept for compatibility
    yes?: boolean;
    planOnly?: boolean;
    savePlan?: string;
    fromPlan?: string;
    detailed?: boolean;
    interactive?: boolean;
    verbose?: boolean;
    diff?: boolean;
  } = {},
): Promise<any> => {
  if (options.verbose) {
    setVerboseMode(true);
  }

  const shouldWrite = options.write ?? (options.dryRun === false);

  const project = await Project.fromCwd({ requireProjectType: false });
  const context = new FormatContext();
  const planner = new FormatPlanner();

  const smartconfigInstance = new plugins.smartconfig.Smartconfig();
  const formatConfig = smartconfigInstance.dataFor<any>('@git.zone/cli.format', {
    interactive: true,
    showDiffs: false,
    autoApprove: false,
    modules: {
      skip: [],
      only: [],
    },
  });

  const interactive = options.interactive ?? formatConfig.interactive;
  const autoApprove = options.yes ?? formatConfig.autoApprove;

  try {
    // Initialize formatters in execution order
    const formatters = Object.entries(formatterMap).map(
      ([, FormatterClass]) => new FormatterClass(context, project),
    );

    // Filter formatters based on configuration
    const activeFormatters = formatters.filter((formatter) => {
      if (formatConfig.modules.only.length > 0) {
        return formatConfig.modules.only.includes(formatter.name);
      }
      if (formatConfig.modules.skip.includes(formatter.name)) {
        return false;
      }
      return true;
    });

    // Plan phase
    logger.log('info', 'Analyzing project for format operations...');
    let plan = options.fromPlan
      ? JSON.parse(
          (await plugins.smartfs
            .file(options.fromPlan)
            .encoding('utf8')
            .read()) as string,
        )
      : await planner.planFormat(activeFormatters);

    // Display plan
    await planner.displayPlan(plan, options.detailed);

    // Save plan if requested
    if (options.savePlan) {
      await plugins.smartfs
        .file(options.savePlan)
        .encoding('utf8')
        .write(JSON.stringify(plan, null, 2));
      logger.log('info', `Plan saved to ${options.savePlan}`);
    }

    if (options.planOnly) {
      return;
    }

    // Show diffs if explicitly requested or before interactive write confirmation
    const showDiffs = options.diff || (shouldWrite && interactive && !autoApprove);
    if (showDiffs) {
      logger.log('info', 'Showing file diffs:');
      console.log('');

      for (const formatter of activeFormatters) {
        const checkResult = await formatter.check();
        if (checkResult.hasDiff) {
          logger.log('info', `[${formatter.name}]`);
          formatter.displayAllDiffs(checkResult);
          console.log('');
        }
      }
    }

    // Dry-run mode (default behavior)
    if (!shouldWrite) {
      logger.log('info', 'Dry-run mode - use --write (-w) to apply changes');
      return;
    }

    // Interactive confirmation
    if (interactive && !autoApprove) {
      const interactInstance = new plugins.smartinteract.SmartInteract();
      const response = await interactInstance.askQuestion({
        type: 'confirm',
        name: 'proceed',
        message: 'Proceed with formatting?',
        default: true,
      });

      if (!(response as any).value) {
        logger.log('info', 'Format operation cancelled by user');
        return;
      }
    }

    // Execute phase
    logger.log('info', 'Executing format operations...');
    await planner.executePlan(plan, activeFormatters, context);

    context.getFormatStats().finish();

    const showStats = smartconfigInstance.dataFor('gitzone.format.showStats', true);
    if (showStats) {
      context.getFormatStats().displayStats();
    }

    if (options.detailed) {
      const statsPath = `.nogit/format-stats-${Date.now()}.json`;
      await context.getFormatStats().saveReport(statsPath);
    }

    logger.log('success', 'Format operations completed successfully!');
  } catch (error) {
    logger.log('error', `Format operation failed: ${error.message}`);
    throw error;
  }
};

import type { ICheckResult } from './interfaces.format.js';
export type { ICheckResult };

/**
 * Run a single formatter by name (for use by other modules)
 */
export const runFormatter = async (
  formatterName: string,
  options: {
    silent?: boolean;
    checkOnly?: boolean;
    showDiff?: boolean;
  } = {}
): Promise<ICheckResult | void> => {
  const requireProjectType = !formattersNotRequiringProjectType.includes(formatterName);
  const project = await Project.fromCwd({ requireProjectType });
  const context = new FormatContext();

  const FormatterClass = formatterMap[formatterName];
  if (!FormatterClass) {
    throw new Error(`Unknown formatter: ${formatterName}`);
  }

  const formatter = new FormatterClass(context, project);

  if (options.checkOnly) {
    const result = await formatter.check();
    if (result.hasDiff && options.showDiff) {
      formatter.displayAllDiffs(result);
    }
    return result;
  }

  const changes = await formatter.analyze();

  for (const change of changes) {
    await formatter.applyChange(change);
  }

  if (!options.silent) {
    logger.log('success', `Formatter '${formatterName}' completed`);
  }
};